A biker sped past an officer and he turned on his siren.

Who is "he" in this prior sentence?
OPTIONS:
- A biker
- an officer
an officer
The glass hit the floor and it broke.

Who is "it" in this prior sentence?
OPTIONS:
- The glass
- the floor
The glass
When Sue went to Nadia's home for dinner, she told the security guard to let her in.

Who is "she" in this prior sentence?
OPTIONS:
- Sue
- Nadia

Sue